mikroElektronika PULSE click User manual

2 3
2. Soldering the headers
3. Plugging the board in
Once you have soldered the headers your
board is ready to be placed into the desired
mikroBUS™socket. Make sure to align the cut
in the lower-right part of the board with the
markings on the silkscreen at the mikroBUS™
socket. If all the pins are aligned
correctly, push the board all the
way into the socket.
Turn the board upward again. Make sure
to align the headers so that they are
perpendicular to the board, then solder the
pins carefully.
Turn the board upside down so that
the bottom side is facing you upwards.
Place shorter pins of the header into the
appropriate soldering pads.
Before using your click board™, make sure
to solder 1x8 male headers to both left and
right side of the board. Two 1x8 male headers
are included with the board in the package.
4. Essential features
The frequency of PULSE click is congured
in two steps. First select between four
frequency bands by using the frequency
selector - a circular central switch in the
middle of the board. Starting from the six-o-
clock position and moving counter-clockwise
in quarters, it has 4 options: 0) Up to 100 Hz;
1) Up to 1 kHz; 2) Up to 10 kHz; and 3) Up
to 100 kHz. After you select the appropriate
position, use the onboard potentiometer to
ne-tune the desired output frequency.
1
PULSE click is a pulse generator with an
adjustable frequency. It carries the NEN555
precision timer capable of producing highly
accurate time delays, and the output can
be sent to the MCU through the OUT pin,
(default mikroBUS™AN pin) or an interrupt
(INT pin) or an interrupt (INT pin). An extra
output pin above the mikroBUS™socket is
also available. Designed to use either a 3.3V
or a 5V power supply.
1. Introduction
PULSE click Manual v100
0100000092453
click
BOARDS™
www.mikroe.com
PULSE click
PULSE click Manual v100

AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS DEVICE CONN.
R1
2K2
P1
10K
8
7
6
54
3
2
1GND
TRIG
OUT
RESET CONT
THRES
DISCH
VCC
U1
NE555
1
C
0
2
C
3
0
1
2
3
SW1
CS-7
C6
0.1uF
C4
10uF
LD1
GND
+5V
J1 J2
Q1
DMG3420U
GNDGND
+3.3V +5V
R6
3K3
+5V
GND
C1
100nF
C7
100nF
C3
100uF
C5
1uF
GND GND
+5V
GND GND
+5V
GND
6
5
43
2
1VCCA
GND
A B
DIR
VCCB
U2
SN74LVC1T45
+5V VCC-OUT
GND GND
OUTA
C8
100nF
GND
R2
2K2
+5V
R3
2K2
VCC-OUT
R4
10
R5
1M
GND
+5V VCC-OUT +3.3V
OUT
INT TG-TH
OUTA
OUTB OUTB
DISCH
DISCH
OUTB
INT
OUT
OUTA
TG-TH
frequency= 1.44
(Ra+2Rb)C
tH=0.693(Ra+Rb)C
tL=0.693(Rb)C
tH tL
T
Ra
Rb
LD2
1
2
HD1
OUTB
GND
C2
10nF
GND
P2
100K
P3
10K
P4
100K
R7
51
R8
51
Use a screwdriver to adjust the
output sigal frequency:
Total frequency range: Q ~ 0.05Hz - 100kHz
clockwise
UP DOWN
counter clockwise
SW1: Frequency
range selector:
Output voltage signal parameters:
Units: frequency [kHz]; tH, tL [ms]; Ra, Rb [Kohm]; C [uF]
position 0: 100Hz
position 1: 1kHz
position 2: 10kHz
position 3: 100kHz
J1: Output function settings
J2: Output voltage level settings
Use output voltage signal as:
- interrupt (INT)
- general purpuse analog/digital
(OUT) MCU input
8. Code examples
MikroElektronika oers free tech support
(www.mikroe.com/support) until the end of
the product’s lifetime, so if something goes
wrong, we’re ready and willing to help!
Once you have done all the necessary
preparations, it’s time to get your click board™
up and running. We have provided examples
for mikroC™, mikroBasic™ and mikroPascal™
compilers on our Libstock website. Just
download them and you are ready to start.
.com
6. Dimensions
MikroElektronika assumes no responsibility
or liability for any errors or inaccuracies
that may appear in the present document.
Specication and information contained in
the present schematic are subject to change
at any time without notice.
Copyright © 2015 MikroElektronika.
All rights reserved.
mm mils
LENGTH 42.9 1690
WIDTH 25.4 1000
HEIGHT* 3.9 154
5. Schematic
9. Support
* without headers
10. Disclaimer
25.4 mm / 1000 mils
42.9 mm / 1690 mils
7. SMD jumper
PULSE click features
an SMD jumper
(zero ohm resistor)
that let’s you switch
between a 3.3V or a
5V power supply.

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